Ford F150 Pickup. Instruction — part 1302
Fig. 73: Removing & Installing Inertia Fuel Shutoff Switch (Blackwood)
Courtesy of FORD MOTOR CO.
Expedition & Navigator
Disconnect the battery. Remove the left rear interior trim panel. Remove Inertia Fuel Shutoff (IFS) switch
connector and the 2 retaining bolts. Remove the IFS switch. See Fig. 74 . To install, reverse removal procedure.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline
Fig. 74: Removing & Installing Inertia Fuel Shutoff Switch (Expedition & Navigator)
Courtesy of FORD MOTOR CO.
HEATED OXYGEN SENSOR
Removal
Unplug electrical connector from Heated Oxygen Sensor (HO2S). Sensor may be difficult to remove when
engine temperature is less than 120°F (48°C). Carefully remove HO2S sensor from exhaust pipe.
Installation
When replacing HO2S, coat threads with anti-seize compound before installation. New sensors should already
have this compound applied to threads. Install HO2S sensor. Tighten HO2S sensor to specification. See
TORQUE SPECIFICATIONS . Reconnect wiring connector to HO2S.
INTAKE AIR TEMPERATURE SENSOR
Removal & Installation (4.2L, 4.6L & 5.4L Except Supercharged)
Intake Air Temperature (IAT) sensor is located in air cleaner outlet tube. Disconnect negative battery cable.
Disconnect IAT sensor electrical connector. See Fig. 75 . Remove IAT sensor. To install, reverse removal
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline
procedure.
Fig. 75: Locating IAT Sensor
Courtesy of FORD MOTOR CO.
Removal & Installation (5.4L Supercharged - Air Cleaner Sensor)
Intake Air Temperature (IAT) sensor is located in side of air cleaner housing. Disconnect IAT sensor electrical
connector. See Fig. 76 . Remove IAT sensor. To install, reverse removal procedure.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline
Fig. 76: Locating IAT Sensor (Air Cleaner Sensor)
Courtesy of FORD MOTOR CO.
Removal & Installation (5.4L Supercharged - Intake Manifold Sensor)
1. Remove the front EGR vacuum regulator bracket assembly nut. Remove the EGR vacuum regulator
bracket assembly bolts. Remove the rear EGR vacuum regulator bracket assembly nut. Disconnect the
Barometric (BARO) pressure sensor electrical connector. See Fig. 57 .
2. Disconnect the supercharger bypass vacuum solenoid vacuum lines and electrical connector. Disconnect
the differential pressure feedback EGR sensor electrical connector and two hoses. See Fig. 71 .
3. Disconnect the EGR Vacuum Regulator (EVR) vacuum lines and the electrical connector. Remove the
EVR bracket assembly. Disconnect the Intake Air Temperature (IAT) sensor electrical connector (1). See
Fig. 77 . Remove the IAT sensor (2). To install, reverse the removal procedure.
2003 Ford Pickup F150
2003 ENGINE PERFORMANCE Removal & Installation - Blackwood, Expedition, F150 Pickup & Navigator - Gasoline
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